Severe Thunderstorms and Heavy Rain in the Central US

Isolated to scattered strong to severe thunderstorms may produce damaging winds and hail in the upper Great Lakes into the central High Plains. Heavy rain may create localized areas of flash flooding over parts of the Central Plains and Middle Mississippi Valley. Showers and strong to severe thunderstorms are possible over parts of the Mid-Atlantic. Read More >

Hazardous Weather Conditions

Current conditions at

Lansing Municipal Airport (KIGQ)

Lat: 41.54°NLon: 87.53°WElev: 607ft.

Mostly Cloudy

90°F

32°C

Humidity 54%
Wind Speed S 10 mph
Barometer 29.92 in
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 29 Jun 3:35 pm CDT
Extended Forecast for

South Chicago Heights IL

  • This Afternoon

    This Afternoon: Isolated showers and thunderstorms.  Mostly sunny, with a high near 92. Heat index values as high as 98. South wind 5 to 10 mph.  Chance of precipitation is 20%.

    High: 92 °F

    Isolated
    T-storms

  • Tonight

    Tonight: Isolated showers and thunderstorms.  Partly cloudy, with a low around 73. South southwest wind around 5 mph.  Chance of precipitation is 20%.

    Low: 73 °F

    Isolated
    T-storms

  • Monday

    Monday: A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm.  Partly sunny, with a high near 89. West southwest wind 5 to 10 mph.  Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 89 °F

    Chance
    T-storms then
    Showers
    Likely

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms before 1am.  Mostly cloudy, then gradually becoming mostly clear, with a low around 66. West northwest wind 5 to 10 mph.

    Low: 66 °F

    Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: Sunny, with a high near 84. Northwest wind around 10 mph, with gusts as high as 15 mph.

    High: 84 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Isolated showers and thunderstorms. Mostly sunny, with a high near 92. Heat index values as high as 98. South wind 5 to 10 mph. Chance of precipitation is 20%.
Tonight
Isolated showers and thunderstorms. Partly cloudy, with a low around 73. South southwest wind around 5 mph. Chance of precipitation is 20%.
Monday
A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 89. West southwest wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
A 40 percent chance of showers and thunderstorms before 1am. Mostly cloudy, then gradually becoming mostly clear, with a low around 66. West northwest wind 5 to 10 mph.
Tuesday
Sunny, with a high near 84. Northwest wind around 10 mph, with gusts as high as 15 mph.
Tuesday Night
Mostly clear, with a low around 65.
Wednesday
Sunny, with a high near 87.
Wednesday Night
Partly cloudy, with a low around 67.
Thursday
Mostly sunny, with a high near 87.
Thursday Night
Mostly clear, with a low around 68.
Independence Day
Sunny, with a high near 89.
Friday Night
Partly cloudy, with a low around 73.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 92.
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ABOUT THIS FORECAST

 
Point Forecast:
South Chicago Heights IL
 41.48°N 87.65°W
2:41 pm CDT Jun 29, 2025
3pm CDT Jun 29, 2025-6pm CDT Jul 5, 2025
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database